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RISParameterization of the Condensation Process: A Theoretical Approach
Publisher: American Meteorological Society
Abstract: A theoretical formulation is given that allows separate consideration of the major factors governing cloud droplet spectra in nonprecipitating cumulus clouds: activation of nuclei, condensational growth, and turbulent ...
Coincidence and Dead-Time Corrections for Particles Counters. Part II: High Concentration Measurements with an FSSP
Publisher: American Meteorological Society
Abstract: Meat of the procedures proposed in the past to correct the coincidence and dead time losses in droplet counters FSSP* or ASSP** are based on empirical formulae. A more rigorous analysis of the statistical behavior of these ...
Coincidence and Dead-Time Corrections for Particle Counters. Part I: A General Mathematical Formalism
Publisher: American Meteorological Society
Abstract: Counting loss due to coincidences limit the efficiency of the retriggerable particle counters. When the particle rate increases, the counted rate rapidly reaches a maximum so that it becomes impossible to precisely estimate ...
A Review and Discussion of Processing Algorithms for FSSP Concentration Measurements
Publisher: American Meteorological Society
Abstract: The forward-scattering spectrometer probe (FSSP) is an optical particle counter widely used for the measurement of cloud droplet size distributions and concentration. Previous studies have identified operational limitations ...
Optimal Nonlinear Estimation for Cloud Particle Measurements
Publisher: American Meteorological Society
Abstract: Particle concentration is generally derived from measurements by cumulating particle counts on a given sampling period and dividing this particle number by the corresponding sampled volume. Such a procedure is a poor ...
Comparative Study and Calibration of Sensors for the Measurement of the Liquid Water Content of Clouds with Small Droplets
Publisher: American Meteorological Society
Abstract: Measurements of cloud liquid water content made with various probes reveal a disagreement between their results. We show in this paper that comparisons between actual airborne measurements make it possible to define ...
Holes and Entrainment in Stratocumulus
Publisher: American Meteorological Society
Abstract: Aircraft flights through stratocumulus clouds (Sc) during the Dynamics and Chemistry of Marine Stratocumulus II (DYCOMS-II) study off the California coast found narrow in-cloud regions with less liquid water content (LWC) ...
Aircraft Particle Inlets: State-of-the-Art and Future Needs
Publisher: American Meteorological Society
Abstract: Aircraft inlets connect airborne instruments for particle microphysical and chemical measurements with the ambient atmosphere. These inlets may bias the measurements due to their potential to enhance or remove certain ...
Supplement to Aircraft Particle Inlets: State-of-the-Art and Future Needs
Publisher: American Meteorological Society
Dynamics and Chemistry of Marine Stratocumulus—DYCOMS-II
Publisher: American Meteorological Society
Abstract: The second Dynamics and Chemistry of Marine Stratocumulus (DYCOMS-II) field study is described. The field program consisted of nine flights in marine stratocumulus west-southwest of San Diego, California. The objective of ...